PCA9535A
NXP Semiconductors
Low-voltage 16-bit I2C-bus I/O port with interrupt
23. Contents
1
General description. . . . . . . . . . . . . . . . . . . . . . 1
21.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 36
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 37
21.2
21.3
21.4
2
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 2
Ordering options. . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
3.1
4
22
23
Contact information . . . . . . . . . . . . . . . . . . . . 37
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5
5.1
5.2
Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
6
6.1
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.3
Functional description . . . . . . . . . . . . . . . . . . . 5
Device address. . . . . . . . . . . . . . . . . . . . . . . . . 5
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pointer register and command byte . . . . . . . . . 5
Input port register pair (00h, 01h) . . . . . . . . . . . 6
Output port register pair (02h, 03h) . . . . . . . . . 6
Polarity inversion register pair (04h, 05h). . . . . 7
Configuration register pair (06h, 07h). . . . . . . . 7
I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 9
Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.4
6.5
7
7.1
7.2
Bus transactions . . . . . . . . . . . . . . . . . . . . . . . . 9
Writing to the port registers. . . . . . . . . . . . . . . . 9
Reading the port registers . . . . . . . . . . . . . . . 11
8
8.1
Application design-in information . . . . . . . . . 14
Minimizing IDD when the I/Os are used to
control LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power-on reset requirements . . . . . . . . . . . . . 15
8.2
9
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 17
Recommended operating conditions. . . . . . . 17
Thermal characteristics . . . . . . . . . . . . . . . . . 17
Static characteristics. . . . . . . . . . . . . . . . . . . . 18
Typical characteristics . . . . . . . . . . . . . . . . . . 20
Dynamic characteristics . . . . . . . . . . . . . . . . . 24
Parameter measurement information . . . . . . 25
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 28
Handling information. . . . . . . . . . . . . . . . . . . . 30
10
11
12
12.1
13
14
15
16
17
Soldering of SMD packages . . . . . . . . . . . . . . 30
Introduction to soldering . . . . . . . . . . . . . . . . . 30
Wave and reflow soldering . . . . . . . . . . . . . . . 30
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 30
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 31
17.1
17.2
17.3
17.4
18
19
20
21
Soldering: PCB footprints. . . . . . . . . . . . . . . . 33
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 35
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 35
Legal information. . . . . . . . . . . . . . . . . . . . . . . 36
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2012.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 11 September 2012
Document identifier: PCA9535A